Mechanical movement



March 30 1926.

W. G. COLLINS MECHANI CAL MOVEMENT Original Filed March 24. 192

2 2 Sheets-Sheet l /0reafar Wd/fe a (a/fia: I e ff March 30 1926. 1,579,083

. w. G. COLLINS MECHANI CAL MOVEMENT Original iled March 24, 1922 2 Sheets-Sheet 2 I "v s x /nreofar Patented Mar. 30, 1926.

[UNITED STATES;

WALTER o. Corinne, or GL NDALE, CALIronmA.

MECHANICAL MOVEMENT.

Application med: Manch 24, 1922, Serial No. 546,298. Renewed September 10, 1925.

To all whom it may concern:

Be it known that I, WALTER G. COLLINS, a citizen of the United States, residing at Glendale, in the county of Los Angeles and State of California, have invented new and useful Improvements in Mechanical Movements, of which the following is a specifica'tion; L

Myjnventibn relates to mechanical movements, and a purpose of my invention is the provision of a mechanical movement particu arly adapted, although not necessarily, to engines for converting the reciprocating motion of pistons into a rotary movement and transferring such movement to a driven shaft and in such manner that all side thrust ordinaril imparted to the piston rods is practical y eliminated.

It is also a purpose of my invention to provide a mechanical movement for engines of extremely simple, durable, and 'efiicient construction and which permits of the rigid connection ofthe pistonrods with the piston heads thereby eliminating the necessity and disadvantages ofemploying wrist pins.

' Although I will describe only one form of mechanical movement embodying my invention and point out the novel featuresv thereof'ina claim, it is to be understood that various changes and modifications maybe made. herein without departing from the 4 spirit,v and scope of such claim.

In the accompanying drawings, Figure 1 is a view showing 1n side elevation and partly in section one form' of mechanical movenient in applied positionwith respect to an engine.

Fig. 2 is 'a longitudinal sectionaljview taken on the line 2-2 of Fig. 1.

Figs. 3,4, 5 and 6 are diagrammatic views illustrating the various positions which they mechanical movement occupies during one complete cycle.

Similar reference characters refer to s1m1- lar parts in each of the several views.

Referring specifically to the drawings, my

invention in its present embodiment is shown as applied to an engine consisting of op posed cylinders C and C sustained on a frame designated at F and arranged in horizontal alinement, each cylinder containing a'piston P or P including a rod R or R which is movable through the inner end of the cylinder. These rods B and R are forme fr a s ngle leng h at met l o From the which are normal y closed by plates T and T, theformer being provided axially with a bearing Bin which a drive shaft S is journaledf The inner side of the plate T' is provided with an annular collar 15 to H which is fixedly secured an internal ring gear G, the teeth of which are adapted. to

PATENT OFFICE.

constantly mesh with a pinion or relatively small gear/Cy rotatably mounted in a suitable recess 16 formed in a flywheel W. The fly wheel W is secured axially to the shaft S and is recessed as indicated at 17 to accommodate the ring gear G and the collar 15.,

The pinion G is keyed to a crank pin 18,.

the latter being mounted eccentrically within the flywheel and constituting part of a conventional form of crank -A employed for operatively connecting the piston to the piston rods R and R.

which extends through a suitable bearing 20 formed in the piston rods R and R, a nut 21,.being'threaded1y mounted on the pin for securing the crank against displacement from the bearing.

By reference to Figs. 3, 4, 5 and 6, it will be seen that in operation the recipro- As clearly shown in Fig. 2, the crank also includes a pin 19 eating movement of the pistons P and P moves the crank pin 19 in the same .plane as the rods, and under this movement rotationof the pin 18 is effected to impart owing to its eccentric mounting with respect to the fly wheel-W, a similar movement to the pinion G. and about the sh aft S as a center. As the pinion is capable of rotation about its own axis and is in mesh with the ring gear G, it will be clear that its rotationalcmovement'will effect rotation of the fly wheel W and with the latter the driving shaft S. t

foregoing operation it will be manifest thatpractically all side thrust imparted tothe piston rods R and R is elimi-- nated and therefore the rigid connection of the rods wlth thepistons is rendered possible and with it the elimination of the usual wrist pins. The ring gear G tends to absorb. an detrimental lateral thrust' of the crank A, while at-the same time insuring of. the PO ili Q 49d. u re t icted' pew tion of the pinion G in allowing of the crank A eifecting rotation of the fly wheel W.

What I claim isr In combination, a frame having open sides, plates closing the open sides, an an nular collar formed on one of the inner sides of the plates, an internal rin gear secured to the collar, a shaft journa ed in the collared plate, a fiy-wheel fixed to the shaft and disposed Within the frame, a pinion journaled 'ecc'entrically in the flywheel'and within the area defined by the ring. gear, cylinders fixed to the frame, pistons including rods movable through the 15 

